1. Department of Neurology; Gosford Hospital; Gosford New South Wales Australia
2. Institute of Neurology; University College London; London United Kingdom
3. Cyto-Molecular Diagnostic Research Laboratory; Victorian Clinical Genetics Services and Murdoch Childrens Research Institute; Royal Children's Hospital Melbourne Victoria Australia
4. Faculty of Medicine; Dentistry and Health Sciences; University of Melbourne; Parkville Victoria Australia
5. Molecular and Cytogenetics Laboratory; INTA University of Chile; Santiago Chile
6. Molecular Genetics Laboratory; Victorian Clinical Genetics Services and Murdoch Childrens Research Institute; Royal children's Hospital Melbourne Victoria Australia
7. Genetics of Learning Disability Service, Hunter Genetics; Waratah New South Wales Australia
8. Department of Psychology; Royal Children's Hospital; Melbourne Victoria Australia
9. Melbourne School of Psychological Sciences; University of Melbourne; Parkville Melbourne Australia
10. Child Neuropsychology; Murdoch Childrens Research Institute; Royal Children's Hospital; Melbourne Victoria Australia
11. Faculty of Medicine; University of Newcastle; Newcastle New South Wales Australia
12. Westmead Millennium Institute; University of Sydney; Westmead New South Wales Australia